The JAXBContext has a generateSchema method that can be used to tell it to
generate Schemas for the classes it knows about. Something like:
final List<DOMResult> results = new ArrayList<DOMResult>();
context.generateSchema(new SchemaOutputResolver() {
@Override
public Result createOutput(String ns, String file) throws
IOException {
DOMResult result = new DOMResult();
result.setSystemId(file);
results.add(result);
return result;
}
});
would give you the List of DOMs for the schemas. You could then save them
out or something and use them to generate new code.
Dan
On Tue May 12 2009 8:49:33 am Tom wrote:
> So I have been able to code my service using JAX-RS and I get propery
> XML back and can send it. All peachy.
>
> Now, once the XML is on the client side, I need to reconstruct the
> objects that were transferred.
>
> JAXBContext jc = JAXBContext.newInstance( User.class );
> Unmarshaller u = jc.createUnmarshaller();
> User lUser = (User)u.unmarshal(new ByteArrayInputStream(
> s.getBytes() ) );
> System.out.println(lUser);
>
>
> Ok there too. So.
>
> Then it got me thinking... That unmarshalled object is using the
> original class definition that was marshalled before (this is inside a
> unittest, so both the server and the unittest access the same User
> class). But I do not want my client to use my original class; these are
> fairly complex classes which are interlaced with JPA code. For example
> methods like "getGroups()" which required new entities which may not
> have been send as XML. What I really would require is a shell-class that
> only contains the stuff that JAXB has (un)marshalled, but is "XML
> compatible" with the actual business class.
>
> I know that JAXB can create Java classes based on an XML-Schema, but I
> do not have an XML schema, only annotated classes, and I do not like to
> have duplication.
>
> 1. Is there a way to convert annotated classes to an XML-schema so that
> can be used to generated shell-classes?
>
> 2. does anyone have a suggestion on how else to handle this
> don't-want-my-domain-objects-made-available-to-the-client?
>
> Tom
--
Daniel Kulp
[email protected]
http://www.dankulp.com/blog
